What the listing does not show
870 United Nations Plaza #23B
in 870 United Nations PlazaManhattan, NY 10017CondominiumLow risk
Listed at $2,800,000. The listing does not mention what city records show: 1 open housing violation and 0 open penalties.
- Asking
- $2,800,000
- Beds
- 3 beds
- Baths
- 3.5 baths
- Building
- Condominium
- Built
- 1967
- Open housing violations
- 1
- Immediately hazardous
- 0
- Open building violations
- 2
- Unresolved penalties
- 0
01 / Findings
What to ask about
City records a buyer can raise and a seller should be ready to explain. A reading of open filings, not a forecast.
- 011 open housing violation, none of them immediately hazardous.
- 022 open Buildings Department violations, which can slow a closing.
- 03Checked: no unresolved penalties on file.
02 / Building
The building
City records for 870 United Nations Plaza, the building this listing is in. Department of Finance class RC: Condominium.
- Type
- Condominium
- Year built
- 1967Alterations: 2009
- Floors
- 37
- Units
- 850 residential
- Building area
- 306,964 ft²
- Residential / commercial
- 0 / 306,964 ft²
- Lot
- 88,357 ft²207.05 × 444 ft
- Assessed value
- $64,098,272Tax assessment, not market value
- Assessed land
- $10,664,999
- Tax exemption
- $29,250,383
04 / Checked
What was checked
A zero means the file exists and is clear. A dash means the city has no file for this address, which is not the same thing.
Housing (HPD)
1
open violations
0 immediately hazardous, 0 hazardous, 1 non-hazardous, 0 informational.
Registration recently lapsed, ended Sep 1, 2026. Owner state NY.
Buildings (DOB)
2
open violations
0 safety-related. Most recent open filing Aug 30, 2013.
Permits, unsafe structures, boilers, elevators, facades.
Penalties (ECB)
0
unresolved
No unresolved penalties on file.
05 / Full report
Not on the listing
How many documents and sales the city has on file for this building.
Condominium sales are recorded unit by unit, so deeds and mortgages are not combined for the whole building.
Same building
Other listings at 870 United Nations Plaza
- 870 United Nations Plaza #28D/EManhattan$4,000,000
- 870 United Nations Plaza #10CManhattan$1,250,000
- 870 United Nations Plaza #20BManhattan$1,650,000
- 870 United Nations Plaza #33/34EManhattan$3,150,000
- 870 United Nations Plaza PH-37/38BManhattan$3,450,000
- 870 United Nations Plaza #37/38AManhattan$3,125,000
06 / FAQ
Questions
How many open violations does 870 United Nations Plaza #23B have?
As of Oct 21, 2026, the building at 870 United Nations Plaza has 1 open HPD violations (0 Class C, 0 Class B, 1 Class A, 0 Class I), 2 open DOB violations, 0 unresolved ECB penalties. These are building records, so they apply to this listing.
Is this property in a flood zone?
No. The lot is not inside a FEMA 100-year flood zone on the 2007 or 2015 maps.
Where does this data come from?
Records are combined from NYC DCP PLUTO (tax lot, zoning, FAR); NYC HPD (housing violations and registrations); NYC DOB and ECB (building violations and penalties); NYC ACRIS (recorded deeds, mortgages and satisfactions); Active for-sale listings. PLUTO version 26v2.
Sources
NYC DCP PLUTO (tax lot, zoning, FAR) · NYC HPD (housing violations and registrations) · NYC DOB and ECB (building violations and penalties) · NYC ACRIS (recorded deeds, mortgages and satisfactions) · Active for-sale listings
PLUTO 26v2, refreshed Oct 21, 2026. Written for people buying or selling this property. Not legal, tax, or appraisal advice. Confirm the details with the city before you offer or list.